If tan A is 7/9 what is angle A?

Answers

Answer 1

Answer: Tan a = $(7)/(9)$
a = $Tan^(-1) (7)/(9)$
a = 37.875°

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What are the first three terms of the sequence a1 = 3 and an = 2(an-1)^2? I thought the answer was 3,18,32 but that's not an option! help????

Answers

Answer:

3,18,648

Step-by-step explanation:

We are asked to find out the first three terms of the sequence.

Recurring formula is given as

$a_(n) =2(a_(n-1) ^2)$

Since I term = 3

$a_(2) =2(a_(1))^2=2(3^2)=18$

Applying the same rule,

third term

= $a_(3) =2(a_(2))^2\n=2(18^2)\n=648$

Like this we can find out any number of terms using this recursive formula

a1=3
a2=2(3^2)=18
a3=2(18^2)=648

Un jardín rectangular de 50 m de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho camino si se sabe que su área es 540 metros

Answers

Answer:

$h = 3.214\,m$

Step-by-step explanation:

El área total del camino es el producto del perímetro del jardín y el ancho del camino:

$A = 2\cdot (w + l) \cdot h$

Donde:

$w$ - El ancho del jardín, en metros.

$l$ - El largo del jardín, en metros.

$h$ - El ancho del camino, en metros.

El ancho del camino es:

$h = (A)/(2\cdot (w+l))$

$h = (540\,m^(2))/(2\cdot (50\,m + 34\,m))$

$h = 3.214\,m$

For a science experiment, Mr. Barrows divides 3/4 cup of salt into small jars, each containing 1/10 cup. If he has 1/7 cup of salt left over, how many jars does he fill? Enter an expression you could use to solve the problem.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Initial cup of salt = 3/4 cups ; divided into small jars

Fraction of salt in small jars = 1/10 cup

Fraction left over = 1/7 cup

Number of jars filled?

The fraction divided into the jars :

Initial amount - left over

3/4 - 1/7

(21 - 4) / 28

17 / 28

Fraction of salt per jar = 1/10

Number of jars filled :

Total fraction divided into jars / fraction of salt per jar :

(17 / 28) ÷ (1 /10)

(17 / 28) * (10 / 1)

170 / 28

= 6.0714

= 6 jars

Tommy is drawing a triangle with angles measuring 41° and 123°, and the included side measures 6 cm. What is the measurement of the third angle of the triangle? A) 16°

B) 57°

C) 139°

D) 196°

Answers

Sum of angles in a triangle is 180°. Third angle = 180 - 41 - 123 = 16°

Answer:

A) 16° Is the right answer

Step-by-step explanation:

Identify the terms and like terms in the expressionQ + 4 + 2t - 9+ +
Which statements are true? Check all that apply
The expression contains seven terms.
The terms in the expression are a?, 4,21, 9, and .
The constants, 4 and 9, are like terms.
Like terms have the same variables to the same
powers
9, 21, and I are variables, so they are like terms.
2t and t are like terms.

Answers

Answer:

The answer is 2,3,4,6

Step-by-step explanation:

Here is proof! Hope you pass<33

Answer:

2nd option is correct as it has represented all the terms of the expression.

Between which pair of consecutive integers does square root 21 lie? 10 and 11 5 and 6 20 and 22 4 and 5

Answers

square root of 11. 3 & 4 2. square root of 33. 5 & 6 3. square root of 8. 2 & 3 4. cube root of 220. 6 & 7 5. cube root of -80. 4 & 5 6. fourth root of 20. 2 & 3 7. square root of 300. 17 & 18 8. fifth root of -35. 2 & 3 9. square root of 150. 12 & 13 10. cube root of -312. 6 & 7

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